When to use the default combining method

The default combining method is appropriate for only two scenarios:

• You want the description as a whole to be true only if all the individual descriptors are true (this is the most common scenario).
• You want the description as a whole to be true if at least one of the individual descriptors is true.

You should not use the default method for any other scenario unless you thoroughly understand how the default combining method works.

The default combining method uses:

• The boolean result for each individual descriptor (see Evaluation of individual descriptors)
• The value of the invertmatch attribute in each individual descriptor
• The value of the Optional attribute in each individual descriptor
• The default combining rule